Fluvio‐lacustrine sedimentation in the Agadir‐Tissint Feija (Anti‐Atlas, Morocco): A promising palaeoclimate archive for the last glacial cycle in northwest Africa
International audience Mountainous depocentres are often the single available archives in intracontinental areas. As such, the investigation of their sedimentary dynamics is the only way to reconstruct palaeoenvironmental evolution in these peculiar regions. Here, the basin-scale sedimentary dynamic...
Published in: | The Depositional Record |
---|---|
Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2019
|
Subjects: | |
Online Access: | https://hal.science/hal-02468873 https://hal.science/hal-02468873/document https://hal.science/hal-02468873/file/Depositional%20Record_Nutz_2019_1.pdf https://doi.org/10.1002/dep2.65 |
id |
ftcollegfrance:oai:HAL:hal-02468873v1 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
Collège de France: HAL |
op_collection_id |
ftcollegfrance |
language |
English |
topic |
anti-atlas foreland palaeolake pleistocene morocco tufa [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy |
spellingShingle |
anti-atlas foreland palaeolake pleistocene morocco tufa [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy Nutz, Alexis Kwiecien, Ola Breitenbach, Sebastian Cai, Yanjun Della Porta, Giovanna Danisch, Jan Kabiri, Lahcen Bodin, Stéphane Fluvio‐lacustrine sedimentation in the Agadir‐Tissint Feija (Anti‐Atlas, Morocco): A promising palaeoclimate archive for the last glacial cycle in northwest Africa |
topic_facet |
anti-atlas foreland palaeolake pleistocene morocco tufa [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy |
description |
International audience Mountainous depocentres are often the single available archives in intracontinental areas. As such, the investigation of their sedimentary dynamics is the only way to reconstruct palaeoenvironmental evolution in these peculiar regions. Here, the basin-scale sedimentary dynamics of the Agadir-Tissint Feija (i.e. feija is the local name for lowlands) are discussed together with new palaeoenvironmental information on the late Quaternary in the north-western Sahara margin. The succession consists of up to ca 40 m thick fluvio-lacustrine deposits subdivided into three depositional sequences (S1-S3) that were deposited between ca 75 ka and ca 10 ka. S1 and S2 reflect the evolution of a palaeolake intercalated by carbonate-rich palustrine to alluvial plain environments, while S3 shows the transition to an entirely clastic alluvial plain environment. The three sequences are genetically associated with three pulses of tufa buildups at the outlet of the depocentre. Each pulse of tufa buildup is attributed to wet conditions, while each interruption is associated with drier conditions. The wet-dry alternation at the origin of S1 fits with summer insolation fluctuation suggesting that precession parameters may have paced long-term climate variability in the area. Superimposed on wet-dry cycles, submillennial-scale (750-900 year) shorter-term lake fluctuations are identified in S1 and S2; their origins may be related to North Atlantic Oscillation mechanisms. Furthermore, the sudden increase in clastic sediment supply in S3 evidences a change in sediment production in the catchment area attributed to lower temperatures established during the last glacial period. Finally, this newly identified continental archive is unique at the northern Sahara margin; it enables reconstructions of the local and regional hydrological conditions during the last glacial cycle. Even if a more systematic investigation of palaeoclimate forcing is still necessary, the Agadir-Tissint Feija will potentially bring important ... |
author2 |
Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Institute for Geology, Mineralogy and Geophysics Ruhr University Bochum = Ruhr-Universität Bochum (RUB) Dipartimento di Scienze della Terra "Ardito Desio" Università degli Studi di Milano = University of Milan (UNIMI) Centre de recherche en Biologie cellulaire de Montpellier (CRBM) Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) Faculty of Science and Technology of Aarhus University |
format |
Article in Journal/Newspaper |
author |
Nutz, Alexis Kwiecien, Ola Breitenbach, Sebastian Cai, Yanjun Della Porta, Giovanna Danisch, Jan Kabiri, Lahcen Bodin, Stéphane |
author_facet |
Nutz, Alexis Kwiecien, Ola Breitenbach, Sebastian Cai, Yanjun Della Porta, Giovanna Danisch, Jan Kabiri, Lahcen Bodin, Stéphane |
author_sort |
Nutz, Alexis |
title |
Fluvio‐lacustrine sedimentation in the Agadir‐Tissint Feija (Anti‐Atlas, Morocco): A promising palaeoclimate archive for the last glacial cycle in northwest Africa |
title_short |
Fluvio‐lacustrine sedimentation in the Agadir‐Tissint Feija (Anti‐Atlas, Morocco): A promising palaeoclimate archive for the last glacial cycle in northwest Africa |
title_full |
Fluvio‐lacustrine sedimentation in the Agadir‐Tissint Feija (Anti‐Atlas, Morocco): A promising palaeoclimate archive for the last glacial cycle in northwest Africa |
title_fullStr |
Fluvio‐lacustrine sedimentation in the Agadir‐Tissint Feija (Anti‐Atlas, Morocco): A promising palaeoclimate archive for the last glacial cycle in northwest Africa |
title_full_unstemmed |
Fluvio‐lacustrine sedimentation in the Agadir‐Tissint Feija (Anti‐Atlas, Morocco): A promising palaeoclimate archive for the last glacial cycle in northwest Africa |
title_sort |
fluvio‐lacustrine sedimentation in the agadir‐tissint feija (anti‐atlas, morocco): a promising palaeoclimate archive for the last glacial cycle in northwest africa |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.science/hal-02468873 https://hal.science/hal-02468873/document https://hal.science/hal-02468873/file/Depositional%20Record_Nutz_2019_1.pdf https://doi.org/10.1002/dep2.65 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
ISSN: 2055-4877 EISSN: 2055-4877 Depositional Record https://hal.science/hal-02468873 Depositional Record, 2019, 5 (2), pp.362-387. ⟨10.1002/dep2.65⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/dep2.65 hal-02468873 https://hal.science/hal-02468873 https://hal.science/hal-02468873/document https://hal.science/hal-02468873/file/Depositional%20Record_Nutz_2019_1.pdf doi:10.1002/dep2.65 PRODINRA: 487983 WOS: 000472760500009 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/dep2.65 |
container_title |
The Depositional Record |
container_volume |
5 |
container_issue |
2 |
container_start_page |
362 |
op_container_end_page |
387 |
_version_ |
1802647876372791296 |
spelling |
ftcollegfrance:oai:HAL:hal-02468873v1 2024-06-23T07:55:19+00:00 Fluvio‐lacustrine sedimentation in the Agadir‐Tissint Feija (Anti‐Atlas, Morocco): A promising palaeoclimate archive for the last glacial cycle in northwest Africa Nutz, Alexis Kwiecien, Ola Breitenbach, Sebastian Cai, Yanjun Della Porta, Giovanna Danisch, Jan Kabiri, Lahcen Bodin, Stéphane Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Institute for Geology, Mineralogy and Geophysics Ruhr University Bochum = Ruhr-Universität Bochum (RUB) Dipartimento di Scienze della Terra "Ardito Desio" Università degli Studi di Milano = University of Milan (UNIMI) Centre de recherche en Biologie cellulaire de Montpellier (CRBM) Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) Faculty of Science and Technology of Aarhus University 2019-03-13 https://hal.science/hal-02468873 https://hal.science/hal-02468873/document https://hal.science/hal-02468873/file/Depositional%20Record_Nutz_2019_1.pdf https://doi.org/10.1002/dep2.65 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1002/dep2.65 hal-02468873 https://hal.science/hal-02468873 https://hal.science/hal-02468873/document https://hal.science/hal-02468873/file/Depositional%20Record_Nutz_2019_1.pdf doi:10.1002/dep2.65 PRODINRA: 487983 WOS: 000472760500009 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 2055-4877 EISSN: 2055-4877 Depositional Record https://hal.science/hal-02468873 Depositional Record, 2019, 5 (2), pp.362-387. ⟨10.1002/dep2.65⟩ anti-atlas foreland palaeolake pleistocene morocco tufa [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy info:eu-repo/semantics/article Journal articles 2019 ftcollegfrance https://doi.org/10.1002/dep2.65 2024-06-13T23:38:27Z International audience Mountainous depocentres are often the single available archives in intracontinental areas. As such, the investigation of their sedimentary dynamics is the only way to reconstruct palaeoenvironmental evolution in these peculiar regions. Here, the basin-scale sedimentary dynamics of the Agadir-Tissint Feija (i.e. feija is the local name for lowlands) are discussed together with new palaeoenvironmental information on the late Quaternary in the north-western Sahara margin. The succession consists of up to ca 40 m thick fluvio-lacustrine deposits subdivided into three depositional sequences (S1-S3) that were deposited between ca 75 ka and ca 10 ka. S1 and S2 reflect the evolution of a palaeolake intercalated by carbonate-rich palustrine to alluvial plain environments, while S3 shows the transition to an entirely clastic alluvial plain environment. The three sequences are genetically associated with three pulses of tufa buildups at the outlet of the depocentre. Each pulse of tufa buildup is attributed to wet conditions, while each interruption is associated with drier conditions. The wet-dry alternation at the origin of S1 fits with summer insolation fluctuation suggesting that precession parameters may have paced long-term climate variability in the area. Superimposed on wet-dry cycles, submillennial-scale (750-900 year) shorter-term lake fluctuations are identified in S1 and S2; their origins may be related to North Atlantic Oscillation mechanisms. Furthermore, the sudden increase in clastic sediment supply in S3 evidences a change in sediment production in the catchment area attributed to lower temperatures established during the last glacial period. Finally, this newly identified continental archive is unique at the northern Sahara margin; it enables reconstructions of the local and regional hydrological conditions during the last glacial cycle. Even if a more systematic investigation of palaeoclimate forcing is still necessary, the Agadir-Tissint Feija will potentially bring important ... Article in Journal/Newspaper North Atlantic North Atlantic oscillation Collège de France: HAL The Depositional Record 5 2 362 387 |